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annotate tools/binding/llvm-typemonitor.cpp @ 1274:4ff9ab0d472c

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Check in some old changes to the binding, from before I had commit access. - Add bindings for InsertValue and ExtractValue - Updates to use new APIs where they were renamed or removed. - Add generic error messages if LLVM didn't provide one. - Enable typesafe variadic arguments for GetGEP.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 27 Apr 2009 22:34:36 +0200
parents 1ba61de8796b
children
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1 /// Support for callbacks when an abstract type becomes more concrete.
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4ff9ab0d472c Check in some old changes to the binding, from before I had commit access.
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3 #include "llvm/Support/Streams.h"
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4 #include "llvm/Type.h"
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5 #include "llvm-c/Core.h"
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6
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7 using namespace llvm;
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8
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9 extern "C" typedef int (*RefineCallback)(void *handle, LLVMTypeRef newT);
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10
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11 class TypeMonitor : AbstractTypeUser {
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12 void *handle_;
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13 RefineCallback callback_;
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14
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15 void onRefineType(const Type* oldT, const Type* newT) {
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16 callback_(handle_, wrap(newT));
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17 oldT->removeAbstractTypeUser(this);
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18 delete this;
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19 }
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21 public:
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23 TypeMonitor(Type* T, void *handle, RefineCallback callback)
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24 : handle_(handle), callback_(callback) {
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25 T->addAbstractTypeUser(this);
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26 }
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28 virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy) {
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29 onRefineType(OldTy, NewTy);
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30 }
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31
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32 virtual void typeBecameConcrete(const DerivedType *AbsTy) {
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33 onRefineType(AbsTy, AbsTy);
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34 }
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35
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36 virtual void dump() const {
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37 cerr << "<TypeMonitor>";
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38 }
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39 };
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41 extern "C" void LLVMRegisterAbstractTypeCallback(LLVMTypeRef T,
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42 void *handle,
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43 RefineCallback callback)
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44 {
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45 new TypeMonitor(unwrap(T), handle, callback);
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46 }